caa a22 4500 465744834 CHVBK 20180323111817.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF01808055 doi (NATIONALLICENCE)springer-10.1007/BF01808055 Bonner William Department of Chemistry, Stanford University, 94305, Stanford, CA, USA aut Attempted asymmetric electrochemical reductions in magnetic fields [Elektronische Daten] [William Bonner] Because of negative, ambiguous or controversial results claimed by previous investigators studying the potential efficacy of magnetic fields in directing asymmetric syntheses and because of its potential importance as regards the origin of optical activity, we have attempted to confirm a recent report by Takahashiet al. (1986), who claimed that phenylglyoxylic acid (XIX) may be reduced electrochemically at a mercury cathode placed in a magnetic field of 0.168 T to optically active mandelic acid (XX), with optical yields favoring the S(+)-XX enantiomer as high as 25%. We have found that the complete reduction of XIX in pH 3.8 acetate buffer at a mercury cathode in magnetic fields of either 0.14 or 7.05 T leads only to racemic XX products. The earlier literature describing attempted absolute asymmetric syntheses in magnetic, electric and gravitational fields is briefly and critically reviewed. Kluwer Academic Publishers, 1990 Origins of life and evolution of the biosphere Kluwer Academic Publishers 20/1(1990-01-01), 1-13 0169-6149 20:1<1 1990 20 11084 https://doi.org/10.1007/BF01808055 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01808055 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Bonner William Department of Chemistry, Stanford University, 94305, Stanford, CA, USA aut NATIONALLICENCE 773 0- Origins of life and evolution of the biosphere Kluwer Academic Publishers 20/1(1990-01-01), 1-13 0169-6149 20:1<1 1990 20 11084 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer